/*
 *  Copyright 2013 National Institute of Advanced Industrial Science and Technology
 *  
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.sss.server;

import org.sss.mapreduce.Configuration;

@SuppressWarnings("serial")
public class BlindConfiguration extends Configuration {
  private Configuration parent;

  public BlindConfiguration(Configuration parent) {
    this.parent = parent;
    setClassLoader(parent.getClassLoader());
  }

  @Override
  public boolean containsKey(String name) {
    return super.containsKey(name) || parent.containsKey(name);
  }

  @Override
  public byte[] getRaw(String name) {
    if (super.containsKey(name)) {
      return super.getRaw(name);
    } else {
      return parent.getRaw(name);
    }
  }
}
